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A possible conflict in Iraq; deteriorating economies in South Americas famine in sub-Saharan Africa; turmoil in Indonesia; political instability in the Balkans. And in many developing countries, persistent crime, lousy education and a lack of opportunities for energetic people to prosper without graft and political connections. No wonder so many people want the chance of a better life in the stable, meritocratic economies of the rich world. No wonder they risk their life savings, or even their lives, to buy the hope of higher earnings, fairer treatment and better opportunities for their families.
This movement of humanity brings undoubted gains, and not just to the immigrants. The gap between earnings in the poor and rich worlds is vastly greater than the gap in the prices of traded goods. As our survey argues, the potential economic benefits to the world of liberalizing migration dwarf those from removing trade barriers. Where populations are aging
A. it narrows the gap between earnings in the poor and the rich worlds.
B. it helps remove trade barriers between the developing and the developed.
C. it supplies adequate labors to a slow-moving host economy.
D. it increases tax-paying in the host countries without spending public money.
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